Home / 7,218,964-9,962,170.32-3,999,700

Finding the Fourth Proportional to 7,218,964, 9,962,170.32 and 3,999,700

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Solution

The fourth proportional to 7,218,964, 9,962,170.32 and 3,999,700 is: 5,519,586

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218,964 : 9,962,170.32 = 3,999,700 : x
  2. Step 2: Convert to fraction form
    7,218,964/9,962,170.32 = 3,999,700/x
  3. Step 3: Cross multiply
    7,218,964x = 9,962,170.32 × 3,999,700
  4. Step 4: Simplify right side
    7,218,964x = 39,845,692,628,904
  5. Step 5: Solve for x
    x = 39,845,692,628,904/7,218,964
  6. Step 6: Final answer
    x = 5,519,586

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.